Khanna, Mahavir S.; Singh, Om V.; Garg, Chandra P.; Kapoor, Ram P.
Journal of the Chemical Society, Perkin Transactions 1: Organic and Bio-Organic Chemistry (1972-1999), 1992 , # 19 p. 2565 - 2568

Singh, Om V.; Kapil, Randhir S.
Indian Journal of Chemistry, Section B: Organic Chemistry Including Medicinal Chemistry, 1993 , vol. 32, # 9 p. 911 - 915

Khanna; Singh; Garg; Kapoor
Synthetic Communications, 1993 , vol. 23, # 5 p. 585 - 590